4 results about "Hyperboloid structure" patented technology

This invention discloses a special tooling for processing sectors of a fusion reactor vacuum chamber, belonging to the field of tooling for processing nuclear fusion devices. The tooling includes a trapezoidal central frame, around which a left support, upper support, right support, and lower support are respectively installed. These four supports collectively support the hyperboloid structure components of a large magnetic confinement fusion vacuum chamber. This invention involves suspending the central frame and flipping the tooling, allowing the central frame to provide support for the entire device. The left, upper, right, and lower supports collectively support the hyperboloid structure components of the large magnetic confinement fusion vacuum chamber. The left, upper, right, and lower supports can be disassembled from the central frame, facilitating the sequential clamping and welding of workpieces. This effectively improves the assembly accuracy of different curved surfaces of the vacuum chamber, the processing and manufacturing accuracy of curved structures, reduces costs, and decreases workload.

The invention provides a heat storage body based on asymmetrical dissipation structure and electromagnetic field cooperation and a preparation method, the heat storage body comprises a spiral framework, a stress buffer layer and an energy storage core layer, the spiral framework is provided with an asymmetrical hyperboloid structure, the curvature of the inner wall of the asymmetrical hyperboloid structure is different from that of the outer portion of the asymmetrical hyperboloid structure, and the spiral framework is prepared from steel slag; the stress buffer layer is made of a negative thermal expansion ceramic material and covers the outer wall of the spiral framework, and the energy storage core layer is made of a solid waste-based composite phase change material and is filled in the spiral framework. Through the arrangement of the spiral framework, the radiation heat dissipation effect can be enhanced, the temperature gradient is reduced, internal stress and thermal stress are effectively inhibited, and the service life is prolonged; through the arrangement of the stress buffer layer, the energy storage core layer can be prevented from being greatly shrunk, and the destructive effect of thermal stress on the heat storage body is further relieved; by means of the arrangement of the energy storage core layer, the uniformity of an internal thermal field can be actively adjusted, and crack growth and collapse caused by uneven thermal stress are effectively restrained.

The invention discloses a double-curved-surface cable membrane sky screen system and an installation method thereof. The system comprises a supporting assembly installed on an external platform, a membrane cloth assembly arranged on the supporting assembly, a traction assembly for pulling the membrane cloth assembly and a drainage assembly for draining accumulated water flowing down from the membrane cloth assembly. The supporting assembly is formed by combining and splicing a socket frame, a track fixing piece and a pulley, the membrane cloth assembly comprises a double-curved-surface-structure awning membrane cloth and a tensioning part connected with the pulley, and the traction assembly comprises a winch arranged on an external platform, a traction rope connecting the winch with the tensioning part and a pulley structure making contact with the traction rope. According to the system, through accurate cooperation of all the assemblies, convenient and fast mounting and dismounting, flexible folding and unfolding, accumulated water guide and drainage and dynamic adjustment adapting to field working conditions of the sky curtain are achieved, the universality and practicability of the system are improved, the manpower and time cost is reduced, and the safety of the construction environment is guaranteed; and the construction efficiency of the building machine is effectively improved.

The invention discloses a secondary reflection structure applied to a space condensation type solar cell system. The secondary reflection structure comprises a primary mirror, a secondary mirror, a secondary mirror support and a light funnel. The primary mirror comprises a primary mirror base body which is of a quadrilateral outline nearly parabolic spherical surface structure, a reflecting layer and a transparent infrared radiation layer are sequentially arranged on the optical working face of the primary mirror base body, and the dual functions of efficient optical reflection and passive radiation heat dissipation are achieved. And the optical working surface of the secondary mirror adopts a near-hyperboloid structure, and is fixed in a reflecting light path convergence area of the primary mirror through a secondary mirror bracket to secondarily reflect light rays reflected by the primary mirror. The light funnel is of a conical cavity structure, an inlet of the light funnel is connected with a secondary mirror reflection light path, and an outlet corresponds to the light receiving face of the battery piece to finish final light guiding. Through optical-thermal function integrated primary mirror design, accurate optical path construction and stable mechanical support, the heat dissipation problem of an optical element is effectively solved while high-power light condensation efficiency is ensured, and the adaptability and reliability of a system in a space environment are improved.